Expose meta for Metric and SemanticModel (#250)

Resolves #251 

<!---
Include the number of the issue addressed by this PR above if
applicable.
  PRs for code changes without an associated issue *will not be merged*.
  See CONTRIBUTING.md for more information.
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### Description
This PR exposes the `meta` field for Metric and SemanticModel which
enables it to be parsed out in the semantic manifest for use in the SL
APIs
<!---
Describe the Pull Request here. Add any references and info to help
reviewers
  understand your changes. Include any tradeoffs you considered.
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### Checklist

- [x] I have read [the contributing
guide](https://github.com/dbt-labs/dbt-semantic-interfaces/blob/main/CONTRIBUTING.md)
and understand what's expected of me
- [x] I have signed the
[CLA](https://docs.getdbt.com/docs/contributor-license-agreements)
- [x] This PR includes tests, or tests are not required/relevant for
this PR
- [x] I have run `changie new` to [create a changelog
entry](https://github.com/dbt-labs/dbt-semantic-interfaces/blob/main/CONTRIBUTING.md#adding-a-changelog-entry)

Author: WilliamDee

.changes/unreleased/Features-20240120-000329.yaml

@@ -0,0 +1,6 @@
+kind: Features
+body: Expose meta on Metric/SemanticModel
+time: 2024-01-20T00:03:29.80055-05:00
+custom:
+  Author: WilliamDee
+  Issue: "251"

dbt_semantic_interfaces/implementations/metric.py

@@ -1,6 +1,8 @@
 from __future__ import annotations
 
-from typing import List, Optional, Sequence
+from typing import Any, Dict, List, Optional, Sequence
+
+from typing_extensions import override
 
 from dbt_semantic_interfaces.enum_extension import assert_values_exhausted
 from dbt_semantic_interfaces.errors import ParsingException
@@ -14,6 +16,7 @@
     PydanticWhereFilterIntersection,
 )
 from dbt_semantic_interfaces.implementations.metadata import PydanticMetadata
+from dbt_semantic_interfaces.protocols import MetricConfig, ProtocolHint
 from dbt_semantic_interfaces.references import MeasureReference, MetricReference
 from dbt_semantic_interfaces.type_enums import (
     ConversionCalculationType,
@@ -170,6 +173,14 @@ class PydanticMetricTypeParams(HashableBaseModel):
     input_measures: List[PydanticMetricInputMeasure] = Field(default_factory=list)
 
 
+class PydanticMetricConfig(HashableBaseModel, ProtocolHint[MetricConfig]):  # noqa: D
+    @override
+    def _implements_protocol(self) -> MetricConfig:  # noqa: D
+        return self
+
+    meta: Dict[str, Any] = Field(default_factory=dict)
+
+
 class PydanticMetric(HashableBaseModel, ModelWithMetadataParsing):
     """Describes a metric."""
 
@@ -180,6 +191,7 @@ class PydanticMetric(HashableBaseModel, ModelWithMetadataParsing):
     filter: Optional[PydanticWhereFilterIntersection]
     metadata: Optional[PydanticMetadata]
     label: Optional[str] = None
+    config: Optional[PydanticMetricConfig]
 
     @property
     def input_measures(self) -> Sequence[PydanticMetricInputMeasure]:

dbt_semantic_interfaces/implementations/semantic_model.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Any, List, Optional, Sequence
+from typing import Any, Dict, List, Optional, Sequence
 
 from typing_extensions import override
 
@@ -15,6 +15,7 @@
 from dbt_semantic_interfaces.protocols import (
     ProtocolHint,
     SemanticModel,
+    SemanticModelConfig,
     SemanticModelDefaults,
 )
 from dbt_semantic_interfaces.references import (
@@ -24,7 +25,7 @@
     SemanticModelReference,
     TimeDimensionReference,
 )
-from dsi_pydantic_shim import validator
+from dsi_pydantic_shim import Field, validator
 
 
 class NodeRelation(HashableBaseModel):
@@ -76,6 +77,14 @@ def _implements_protocol(self) -> SemanticModelDefaults:  # noqa: D
     agg_time_dimension: Optional[str]
 
 
+class PydanticSemanticModelConfig(HashableBaseModel, ProtocolHint[SemanticModelConfig]):  # noqa: D
+    @override
+    def _implements_protocol(self) -> SemanticModelConfig:  # noqa: D
+        return self
+
+    meta: Dict[str, Any] = Field(default_factory=dict)
+
+
 class PydanticSemanticModel(HashableBaseModel, ModelWithMetadataParsing, ProtocolHint[SemanticModel]):
     """Describes a semantic model."""
 
@@ -95,6 +104,7 @@ def _implements_protocol(self) -> SemanticModel:
     label: Optional[str] = None
 
     metadata: Optional[PydanticMetadata]
+    config: Optional[PydanticSemanticModelConfig]
 
     @property
     def entity_references(self) -> List[LinkableElementReference]:  # noqa: D

dbt_semantic_interfaces/parsing/generated_json_schemas/default_explicit_schema.json

@@ -328,6 +328,19 @@
             ],
             "type": "object"
         },
+        "metric_config_schema": {
+            "$id": "metric_config_schema",
+            "additionalProperties": false,
+            "properties": {
+                "meta": {
+                    "propertyNames": {
+                        "type": "string"
+                    },
+                    "type": "object"
+                }
+            },
+            "type": "object"
+        },
         "metric_input_measure_schema": {
             "$id": "metric_input_measure_schema",
             "oneOf": [
@@ -383,6 +396,9 @@
             "$id": "metric_schema",
             "additionalProperties": false,
             "properties": {
+                "config": {
+                    "$ref": "#/definitions/metric_config_schema"
+                },
                 "description": {
                     "type": "string"
                 },
@@ -578,6 +594,19 @@
             ],
             "type": "object"
         },
+        "semantic_model_config_schema": {
+            "$id": "semantic_model_config_schema",
+            "additionalProperties": false,
+            "properties": {
+                "meta": {
+                    "propertyNames": {
+                        "type": "string"
+                    },
+                    "type": "object"
+                }
+            },
+            "type": "object"
+        },
         "semantic_model_defaults_schema": {
             "$id": "semantic_model_defaults_schema",
             "additionalProperties": false,
@@ -593,6 +622,9 @@
             "$id": "semantic_model_schema",
             "additionalProperties": false,
             "properties": {
+                "config": {
+                    "$ref": "#/definitions/semantic_model_config_schema"
+                },
                 "defaults": {
                     "$ref": "#/definitions/semantic_model_defaults_schema"
                 },

dbt_semantic_interfaces/parsing/schemas.py

@@ -252,6 +252,15 @@
     "required": ["name", "type"],
 }
 
+metric_config_schema = {
+    "$id": "metric_config_schema",
+    "type": "object",
+    "properties": {
+        "meta": {"type": "object", "propertyNames": {"type": "string"}},
+    },
+    "additionalProperties": False,
+}
+
 # Top level object schemas
 metric_schema = {
     "$id": "metric_schema",
@@ -266,6 +275,7 @@
         "filter": {"$ref": "filter_schema"},
         "description": {"type": "string"},
         "label": {"type": "string"},
+        "config": {"$ref": "metric_config_schema"},
     },
     "additionalProperties": False,
     "required": ["name", "type", "type_params"],
@@ -378,6 +388,15 @@
     "additionalProperties": False,
 }
 
+semantic_model_config_schema = {
+    "$id": "semantic_model_config_schema",
+    "type": "object",
+    "properties": {
+        "meta": {"type": "object", "propertyNames": {"type": "string"}},
+    },
+    "additionalProperties": False,
+}
+
 semantic_model_schema = {
     "$id": "semantic_model_schema",
     "type": "object",
@@ -396,6 +415,7 @@
         "dimensions": {"type": "array", "items": {"$ref": "dimension_schema"}},
         "description": {"type": "string"},
         "label": {"type": "string"},
+        "config": {"$ref": "semantic_model_config_schema"},
     },
     "additionalProperties": False,
     "required": ["name"],
@@ -428,6 +448,8 @@
     export_schema["$id"]: export_schema,
     export_config_schema["$id"]: export_config_schema,
     saved_query_query_params_schema["$id"]: saved_query_query_params_schema,
+    semantic_model_config_schema["$id"]: semantic_model_config_schema,
+    metric_config_schema["$id"]: metric_config_schema,
 }
 
 resources: List[Tuple[str, Resource]] = [(str(k), DRAFT7.create_resource(v)) for k, v in schema_store.items()]

dbt_semantic_interfaces/protocols/__init__.py

@@ -14,6 +14,7 @@
     ConstantPropertyInput,
     ConversionTypeParams,
     Metric,
+    MetricConfig,
     MetricInput,
     MetricInputMeasure,
     MetricTimeWindow,
@@ -27,6 +28,7 @@
 )
 from dbt_semantic_interfaces.protocols.semantic_model import (  # noqa:F401
     SemanticModel,
+    SemanticModelConfig,
     SemanticModelDefaults,
     SemanticModelT,
 )

dbt_semantic_interfaces/protocols/metric.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 from abc import abstractmethod
-from typing import Optional, Protocol, Sequence
+from typing import Any, Dict, Optional, Protocol, Sequence
 
 from dbt_semantic_interfaces.protocols.metadata import Metadata
 from dbt_semantic_interfaces.protocols.where_filter import WhereFilterIntersection
@@ -228,6 +228,16 @@ def conversion_type_params(self) -> Optional[ConversionTypeParams]:  # noqa: D
         pass
 
 
+class MetricConfig(Protocol):  # noqa: D
+    """The config property allows you to configure additional resources/metadata."""
+
+    @property
+    @abstractmethod
+    def meta(self) -> Dict[str, Any]:
+        """The meta field can be used to set metadata for a resource."""
+        pass
+
+
 class Metric(Protocol):
     """Describes a metric."""
 
@@ -280,6 +290,11 @@ def input_metrics(self) -> Sequence[MetricInput]:
     def metadata(self) -> Optional[Metadata]:  # noqa: D
         pass
 
+    @property
+    @abstractmethod
+    def config(self) -> Optional[MetricConfig]:  # noqa: D
+        pass
+
     @property
     @abstractmethod
     def label(self) -> Optional[str]:

dbt_semantic_interfaces/protocols/semantic_model.py

@@ -1,7 +1,7 @@
 from __future__ import annotations
 
 from abc import abstractmethod
-from typing import Optional, Protocol, Sequence, TypeVar
+from typing import Any, Dict, Optional, Protocol, Sequence, TypeVar
 
 from dbt_semantic_interfaces.protocols.dimension import Dimension
 from dbt_semantic_interfaces.protocols.entity import Entity
@@ -50,6 +50,16 @@ def agg_time_dimension(self) -> Optional[str]:
         pass
 
 
+class SemanticModelConfig(Protocol):  # noqa: D
+    """The config property allows you to configure additional resources/metadata."""
+
+    @property
+    @abstractmethod
+    def meta(self) -> Dict[str, Any]:
+        """The meta field can be used to set metadata for a resource."""
+        pass
+
+
 class SemanticModel(Protocol):
     """Describes a semantic model."""
 
@@ -159,6 +169,11 @@ def reference(self) -> SemanticModelReference:
     def metadata(self) -> Optional[Metadata]:  # noqa: D
         pass
 
+    @property
+    @abstractmethod
+    def config(self) -> Optional[SemanticModelConfig]:  # noqa: D
+        pass
+
     @abstractmethod
     def checked_agg_time_dimension_for_measure(self, measure_reference: MeasureReference) -> TimeDimensionReference:
         """Returns the `TimeDimensionReference` what a measure should use for it's `agg_time_dimension`.

tests/parsing/test_metric_parsing.py

@@ -91,6 +91,9 @@ def test_base_metric_parsing() -> None:
           type: {metric_type.value}
           description: {description}
           label: {label}
+          config:
+              meta:
+                random: metadata
           type_params:
             measure:
               name: metadata_test_measure

tests/parsing/test_semantic_model_parsing.py

@@ -28,6 +28,9 @@ def test_base_semantic_model_parsing() -> None:
           node_relation:
             alias: source_table
             schema_name: some_schema
+          config:
+            meta:
+              test_metadata: random
         """
     )
     file = YamlConfigFile(filepath="test_dir/inline_for_test", contents=yaml_contents)

tests/test_implements_satisfy_protocols.py

@@ -22,6 +22,7 @@
 from dbt_semantic_interfaces.implementations.metric import (
     PydanticConversionTypeParams,
     PydanticMetric,
+    PydanticMetricConfig,
     PydanticMetricInput,
     PydanticMetricInputMeasure,
     PydanticMetricTypeParams,
@@ -117,6 +118,7 @@
     filter=builds(PydanticWhereFilter) | none(),
     metadata=OPTIONAL_METADATA_STRATEGY,
     label=OPTIONAL_STR_STRATEGY,
+    config=builds(PydanticMetricConfig),
 )
 
 SAVED_QUERY_STRATEGY = builds(